Machine for soldering vent-cleats to can-caps.



L. C. SHARP.

MACHINE POR SOLDERING lVENT GLBATS T0 GAN CAPS.

APPLICATION PILBDJULY 1a, 190e.

958,776. Patented May 24, 1910.

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f @www ANDREW B GRAHAM Ca. PneToALmloanAvusns, waswmmou n c L. G. SHARP. MACHINE POR SOLDERING VENT GLBATS To GAN CAPS.

APPLIGATION FILED JULY 18,1906.

Patented May 24, 1910.

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ERS wAsHxNGTnu L. C. SHARP, MACHINE POR SOLDERING VENT GLEATS T0 GAN CAPS.

APPLICATION FILED JULYIB, 1906.

Patented May 24, 1910.

8 SHEETS-SHEET 3.

L. C. SHARP.

MACHINE POR SOLDBRING VENT GLEATS T0 GAN CAPS.

APPLICATION FILED JULY 18,1906.

Patented May 24, 1910.

8 SHEETS-SHEET 4.

L. C. SHARP.

MACHINE FOR SOLDERING VENT CLEATS T0 GAN CAPS.

APPLIOATION FILED JULY 18,1906.

958,776. Patented May 24, 1910. i

E SHEETS--SHEET 5.

L. G. SHARP. MAUHINB Fon SOLDERING VENT GLBATS To GAN CAPs.

APPLICATION FILED JULY 13,1906d 8 SHEETS-SHEET 6.

New

L. GL' SHARP. MACHINE FOR SOLDBRING VENT GLEATS T0 GAN CAPS.

APPLICATION FILED JULY 18,1906.

958,776. Patented May 24, 1910.

8 SHEETS-SHEET 7.

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APPLIOTION FILED JULY 18,1906.

Patented May 24, 1910.

8 SHEETS-SHEET 8.

MAMMAI M. vv

UNITED STATES PATENT OFFICE.

LEE C. SHARP, OF OMAHA, NEBRASKA, ASSIGNOR TO AMERICAN CAN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

MACHINE FOR SOLDERING- VENT-CLEATS TO CAN-CAPS.

Specification of Letters Patent.

Application led July 18, 1906.

Patented May 24C, 1910.

semi No. 326,678.

To all whom it may concern:

Be it known that I, LEE C. SHARP, a citizen of the United States, residing in Omaha, in the county of Douglas and State of Ne brasla, have invented a new and useful Improvement in Machines for Soldering Vent- Cleats to Can-Caps, of which the following is a specification.

My invention relates to machines for soldering vent cleats or clips to can caps.

Heretofore vent cleats or clips (which are secured on the inside of can caps of preserving cans for meat, fish and other articles to prevent the contents of the can from closing up the vent hole in the can cap during the processing of the goods,) have usually been soldered to the caps by hand, and is a slow, laborious and expensive operation and requires a comparatively large amount of solder, thus adding materially to the cost of the cans.

The object of my invention is to provide an automatic machine of a simple, eiiicient and durable construction, by means of which vent cleats or clips may be automatically, rapidly and cheaply soldered to can caps without hand labor, and by which the quantity of solder required to secure the clips to the can caps may be materially reduced.

My invention consists in the means I em ploy to practically accomplish this object or result; that is to say, it consists in an automatic vent cleat soldering machine, comprising, in cooperative combination, a clip feeder by which the clips are fed one by one from a pile or stack, a movable clip carrier furnished with a plurality of clip holders to which the clips are automatically delivered from the feeder, the clip holder having a rocking or dipping movement, a fluxing device and a molten solder bath into which one edge of the clip is dipped to apply thereto the solder necessary for securing it to the can cap, a can cap feeder, a carrier furnished with a plurality of can cap holders to which the caps are automatically delivered from the cap feeder, the can cap carrier and cap holders thereon cooperating with the clip carrier and clip holders thereon to receive and assemble the clips with the can caps in position for being soldered together, and a plurality of soldering irons for fusing the solder applied to the clips and soldering the same to the can caps.

My invention also consists in the novel construction of parts and devices, and in the novel combinations of parts and devices herein shown or described.

In the accompanying drawing forming a part of this specification, Figure 1 is a side elevation of an automatic can cap clip soldering machine embodying my invention. Fig. 2 is a plan view. Fig. 3 is a horizontal section on line 3-3 of Fig. 1, with the cap plates of the clip carrier and can cap carrier removed. Fig. l is a horizontal section on line P-1 of Fig. 1. Fig. 5 is a detail plan view partly in horizontal section showing the cam tracks. Fig. 6 is a detail plan view partly in section showing the clip feed passage or chute. Fig. 7 is a detail plan view partly in section showing the can cap feed passage or chute. Fig. 8 is a detail vertical section on line 8 8 of Fig. 2. Figs. 9 and 10 taken together are a detail vertical section on line 9 9 of Fig. 2. Fig. 11 is a detail horizontal section on line 11-11 of Fig. 8. Fig. 12 is a detail section on the broken line 12-12 of Fig. 9. Fig. 13 is a detail section on line 13--13 of Fig. 8. Fig. 14: is an enlarged detail section on line 14.--14 of Fig. 3. Fig. 15 is a detail section of certain parts on line 15-15 of Fig. 111. Fig. 16 is a detail face View of one of the clip holders. Fig. 17 is a detail face view of one of the cap holders. Fig. 18 is a sectional view on line 18-18 of Fig. 3 showing the cap and clip assembled and Fig. 19 is a detail diagrammatic view showing the electric circuit. Fig. 20 is a detail view illustrating the cooperative action of the clip shaper or bumper and clip holder in shaping vthe clip.

In the drawing, A represents the frame of the machine, B a rack for holding a pile or stack X of clips C is the clip feeder, the same consisting preferably of a permanent magnet.

lD is the clip delivery device, the same consisting preferably of an inclined two part or opening and closing chute.

E is the clip carrier consisting preferably of a rotary turret.

F F are the clip holders on the clip carrier, the same consisting preferably of an electro magnet.

Gr is the molten solder bath into which the lower rim or edge of the clip :c is dipped as it is conveyed around kby the carrier E.

H is the rack for the pile or stack X1 of cancaps 001 K is the feeder for the can caps.

L is the can cap delivery device or chute, M the can cap carrier, N the can cap holders on the carrier and P the soldering irons.

The rack B for the pile of clips Xris preferably arranged in a slightly inclined position and slides upward on a suitable guide Bl as the clips are fed one by one by the feeder C so as to present the upper clip of the pile or stack in substantially the same cooperative relation to the feeder. The rack B is thus automatically moved or operated by an arm b on a block b1 which is engaged by a screw shaft b2. The block b1 has a screw blade or finger b3 which engages the screw threads on the shaft b2. Zhen it is desired to move the clip rack B independent of the screw shaft b2V the screw blade or finger 3 may be retracted by the lever b4 which is furnished with a spring b5 to hold the screw blade or finger b3 normally in engagement. The screw shaft b2 is operated as required by a spider or radially armed wheel Z9 thereon which is engaged by a pin 57 on the gear cam wheel C2. The clip feeder C preferably consists, as before stated, of a permanent or steel magnet and it is reeiprocated up and down as required to lift the uppermost clip x of the stack or pile X above the clip delivery device or chute D by means of a reciprocating slide C1 which is operated from the cam wheel C2 through the lever C4, having a roller C5, and connecting link CG.

The clip chute or delivery device D comprises two opening and closing members between which the feeder C reciproeates, the members D D opening to permit the passage of the clip between them as the feeder C moves upward and then closing to supportl the clip. The clip is freed from the feeder or magnet C by guards D1 with which the chute or delivery device D is provided. The two members of the chute D are normally held closed by a spring Z secured to the frame by a screw L and engaging pins Z2 mounted in the frame A and engaging shoulders Z22 on the members D D of the chute or delivery device. The members D D are pivotally connected to theframe at al and are opened by a revolving cam Z3 on the shaft Z4 which engages anti-friction rollers Z21 on the chute members D1. The shaft Z4 is turned at intervals as required by an arm Z5 thereon which is engaged by projections Z6 on the gear Z7.

The clip carrier E consists preferably of a continuously revolving turret having an upright shaft El furnished with a worm gear E? engaging a worm E3 on the driving shaft F4.L The clip holders F on the clip carrier E having a rocking or oscillating movement on the carrier E so as to present the face of the holder F in an inclined position corresponding to the chute or delivery device D, and then, after the clip is grasped by the holder F, to turn the clip into a substantially upright position for presentation of its edge to the acid or fiux bath Gl and solder bath G and the second acid or flux bath G2. The clip holder F' is furnished with an operating arm f carrying an anti-friction roller f8 which is engaged by a stationary cam track F1 on the frame of the machine for imparting to the holder F its necessary rocking or oscillating movement about its axis or shaft f1. l1he clip holder F is preferably of soft iron and its means for gripping the clip w consists preferably of an electro magnet of which F2 is the coil. q

The electro magnet is energized or a current passed through the coil F2 at the time when the carrier E brings the holder F adjacent to and above the clip on the chute or clip delivery device D, thus causing the clip to adhere to the holder F and the holder F remains thus magnetically energized while the clip is being presented to the clip shaper or bumper T, the acid or fiuxing bath G1, the solder bath G, the second acid or fluxing bath G2 and to the holder N of the can cap carrier M, when the holder F is denergized, so that the clip x be transferred to the cap m1 and holder N of the cap carrier M.

The carrier E is furnished with an insulating ring E5 provided with metal rings Ff' ET, which form part of the electric circuit. And the coil F2 of the electro magnet is connected and disconnected from the electric circuit as required by means of the Contact makers f2 f3, through the connections fLL f5 the movable Contact piece f2 being operated as required by means of stationary cams F3 on the frame of the machine.

The clip Shaper or bumper T is carried on an arm or bracket A1 forming part of the frame of the machine and turns horizontally on an upright shaft T:L so as to engage the clip a@ on the holder F as the carrier E rotates. The holder F has a dished or curved face F4 to enable the clip shaper or bumper T to properly curve the clip as required to leave an open space between it and the cap m1 at the vent hole x2 therein. The clip shaper or bumper T is rotated as rcquired to properly mesh, like a gear, with the clip holder F on the carrier E by means of a sprocket wheel Z on its shaft Tl which is engaged by a sprocket chain t1 meshing with a sprocket wheel t2 on the shaft t3, which has a gear t4 meshing with a gear ZT on the carrier shaft El The rotating clip Shaper or bumper T cooperates, like the tooth of a gear with theAcurved or dished face of the clip holder F as the latter is carried around by its arrier, to bend or shape the clip to conform to the curved face of the clip holder; it being understood that the clip shaper T rotates continuously as does also the carrier of the clipholder.

The can cap rack H, feeder K and chute or delivery device L are preferably similar in construction and operation to the clip rack B, feeder C and delivery device D; and the saine also generally applies to the can cap carrier M and cap holder N Which correspond in general construction to the clip carrier E and clip holder F.

The can cap rack H slides on a suitably inclined guide H1 and is operated by an arm 71, on the movable block h1 Which has a screw blade or finger h3 engaged by the threads of the screw shaft h2. The screw blade or nger 71,3 has a lever h4 and spring h5. The screw shaft 7a2 is operated by a spider 7L thereon Which is engaged by a pin 71,7 on the gear or cam Wheel K2. The can cap feeder K, which is preferably a permanent or steel magnet, is reciprocated up and down as required by means of a slide K1, which is operated from the cam Wheel K2 by a lever K4 having a roller K5 and connected by a link K6 with the slide K1. The two part or opening and closing can cap delivery device or chute L is furnished with a guard Ll to free the caps from the magnet K and cause them to drop down upon the chute L. The two members of the chute L are normally held closed by springs L2 which engage shoulders L3 on the chute members L. rlhe members L L of the chute are pivoted to the frame at LL and are opened by a revolving cam L5 on the shaft L6 Which is turned at intervals as required, by an arm L7 thereon which is engaged by projections L2 on the gear LD Which is connected to the shaft M1 of the carrier M. The can cap carrier M is revolved continuously by means of a Worm gear 1N' 2 on its shaft M1 Which meshes With a Worm M3 on the driving shaft E4.

The cap holders N on the cap carrier M have a rocking or oscillating movement to present the holder N in the different positions required for coperating With the other parts; that is to say, in an inclined position for coperation with the cap chute or delivery device L, in a vertical position for cooperation With the clip holder F and clip carrier E, and in a horizontal position for coperation with the soldering irons P. The cap holder N is furnished with a bearing arm n carrying an anti-friction roller its which is engaged by a stationary cam track N1 on the frame of the machine for imparting to the holder N its necessary rocking or oscillating movement about its axis or shaft nl. The cap holder N is preferably of soft iron and its means for gripping the cap m1 consists preferably of an electro magnet of which N2 is the coil. The electro magnet is energized or a current passed through said coil N2 at the time When the carrier M presents the holder N adjacent to and above the cap m1 on the chute or cap delivery device L, thus causing the cap to adhere to the holder N; and the holder N remains thus magnetically energized during the operation of assen'ibling the clip on the cap and during the operation of fusing the solder on the clip and soldering the clip to the cap by action of the soldering irons P, and While the solder is setting and the cap with the clip soldered thereto is being conveyed around by the carrier M to the discharge chute 1t, at which point the current is shut off and the electro magnet denergized, thus permitting the completed article to be discharged from the machine into the chute R.

The carrier M is furnished With an insulating ring M5 provided with metal rings lv G M7 which forni part of the electric circuit. The coil N2 of the electric magnet is connected and disconnected from the electric circuit as required, by means of the contact makers n2 n3, through the connections n4 n the movable contact piece n2 being operated as required by means of a stationary cam N3 on the frame of the machine.

The soldering irons P are reciprocated as required to bring them into contact with the assembled. clip and cap on the holders N through a reciprocating shaft P1 having arms P2 for supporting the soldering irons, and Which is provided with radial arms 29 having rollers p1 Which engages a stationary cam p2 on the frame of the machine. The shaft P1 is caused to revolve With the shaft Ml by means of studs 793 on the head 294 and which engage a head 777 which is secured to said carrier shaft M1. Covers O and 01 serve to protect the electric connections on the carriers E and lll respectively.

Q, Q1 are gas and air supply pipes leading to the burners y for heating the soldering irons and Q1 for heating the solder in the solder bath or vessel Gr.

V represents the electric circuit in which the electric magnets for the clip holders are included, and VW the electric circuit in Which the electric magnets for the cap holders are included.

1W is an adjustable guide on the frame of the machine for centering the can cap on the cap holder as the can cap carrier rotates.

1. 1n a machine for automatically soldering vent clips to can caps, the combination with a clip feeder, of a delivery device for the clips, a clip carrier furnished With a plurality of rocking clip holders, a flux bath, a molten solder bath into which one edge of the clip is dipped as it is carried around by the carrier and holder, a clip shaping device, a can cap feeder, adelivery device for the can caps, a cap carrier furnished with a plurality of rocking can cap holders and a plurality of soldering irons for fusing the solder applied to the clips and soldering the same t-o the can caps, substantially as specified.

2. In a machine for automatically soldering vent clips to can caps, the combination with a solder bath, of a clip carrier furnished with a plurality of clip holders, a can cap carrier furnished with a plurality of cap holders adapted to receive the clips from the holders of the clip carrier and a plurality of soldering irons, substantially as specified.

3. The combination with a clip carrier having clip holders, of a magnetic cap carrier having cap holders, means for transferring the clips from the clip carrier to the cap carrier and assembling the same on the caps, and soldering irons for soldering the clips on the caps while the clip and cap are clamped together by the magnetic cap holder, substantially as specied.

4. The combination with a clip supporting rack, of a clip feeder and a clip delivery device through which the clip feeder passes, said delivery device having separable members which open to permit the clip to pass between them to receive the clip when released by the feeder, substantially as specified.

5. The combination with a rack for supporting a pile of sheet metal pieces, of a reciprocating feeder and a two part chute oomprising laterally opening and closing members between which the feeder reciprocates, said members opening to permit the metal pieces to pass between said members, and closing to receive the metal pieces when released by the feeder, substantially as specified.

6. The combination with a rack for supporting a pile of sheet metal pieces, of a reciprocating feeder and a two part chute comprising laterally opening and closing members between which the feeder reciprocates, and means for automatically moving the members of said supporting rack, substantially as specified.

7. The combination with a supporting rack for pieces of sheet metal, of a reciprocating magnetic feeder and a delivery device having two opening and closing members between which the feeder reciprocates, said delivery device being provided with a guard to strip the pieces of sheet metal from the feeder, substantially as specified.

8. The combination with a supporting rack for pieces of sheet metal, of a reciprocating magnetic feeder, and a delivery device having two opening and closing members between which the feeder reciprocates, said delivery device being provided with a guard to strip the pieces of sheet metal from the feeder, means for moving the supportsav've ing rack and means for opening and closing the two members of the delivery device, substantially as specified.

9. The combination with a rotaryv clip carrier having holders thereon, of a rotary clip shaper cooperating with said holder to shape the clip held thereon, substantially as specified.

10. The combination with a cli carrier having holders thereon, of a clip s aper cooperating with said holder to shape the clip held thereon, and a solder bath, said clip carrier cooperating with said Shaper to shape the clip and with said solder bath to apply solder to the edge of the clip, substantially as specified.

11. The combination with a clip carrier having holders thereon, of a clip shaper c0- operating with said holder to shape the clip held thereon, a solder bath and a flux bath, said clip carrier coperating with said shaper to shape the clip and with said solder bath to apply solder to the edge of the clip, substantially as specified.

12. The combination with a clip carrier having holders thereon, of a clip shaper, a solder bath, a flux bath and a cam track for causing the clip holders to dip the edge of the clips in the flux and solder baths, substantially as specified.

13. The combination with a rotary can cap carrier having cap holders, of a clip carrier having rotary clip holders, said carriers rotating together, and means for soldering the can cap and clip together, substantially as specified.

14. The combination with a rotary can cap carrier having cap holders, of a rotary clip carrier having clip holders, said carriers rotating together, and means for transferring the clips from the holders of the clip carrier tothe holders of the cap carrier, and means for soldering the can cap and clip together, substantially as specified.

15. The combination with a rotary can cap carrier having electromagnetic cap holders thereon, of a rotary clip carrier having elect-ro magnetic clip holders thereon, said carriers rotating together, substantially as specified.

16. The combination with a can cap carrier having electro magnetic cap holders thereon, of a clip carrier having electro magnetic clip holders thereon, 'and means for deenergizing the electro magnet of the clip holder to cause the clip to be transferred from the clip holder to the cap holder and to be assembled with the cap, substantially as specified.

17. The combination with a rotary can cap carrier having electroV magnetic cap holders thereon, of a rotary clip carrier having electro magnetic clip holders thereon, said carriers rotating together, and means for denergizing the electro magnet of the clip'holder to cause the clip to be transferred from the clipi'holder to the cap holder and to be assembled with the cap, and soldering irons, substantially as specified.

18. The combination With a can cap carrier having electro magnetic cap holders thereon, of a clip carrier having electro magnetic clip holders thereon, and means for deenergizing the electro magnet of the clip holder to cause the clip to be transferred from the clip holder to the cap holder and to be assembled With the cap, and means for soldering the clips on the caps While held and carried by the cap holders, substantially as specified.

19. The combination With aclip carrier having clip holders thereon, of means for applying solder to the edge of the clip, a cap carrier having cap holders, means for transferring the clip from the clip carrier to the cap carrier, and assembling it with the cap, and means for soldering the clip and cap together, substantially as specified.

20. In a machine for soldering vent clips on can caps, the combination With a carrier furnished With electro magnetic holders for the can caps, means for delivering the clips on the can caps as they are conveyed by said carrier and means for soldering the clips and caps together While held together by said magnetic holders of the cap carrier, substantially as specified.

21. In a machine for soldering vent clips on can caps, the combination of a clip car rier provided With an electro magnetic cap holder, of a cap carrier provided With an electro magnetic cap holder, substantially as specified.

22. In a machine for soldering vent clips on can caps, the combination of a clip carrier provided with an electro magnetic clip holder, of a cap carrier provided With an electro magnetic cap holder, means for transferring the clip from the clip carrier to the cap carrier and assembling it with the cap, and means for soldering the cap and clip together, substantially as specified.

23. In a machine for soldering vent clips on can caps, the combination of a clip carrier provided With an electro magnetic clip holder, of a cap carrier provided with an electro magnetic cap holder, means for transferring the clip from the clip carrier to the cap carrier and assembling it with the cap, means forsoldering the cap and clip together, and means for automatically feeding and delivering the clips to the clip carrier, substantially as specified.

24;. In a machine for soldering vent clips on can caps, the combination of a clip carrier provided With an electro magnetic clip holder, of a cap carrier provided With an electro magnetic cap holder, means for transferring the clip from the clip carrier to the cap carrier and assembling it With the cap,

means for soldering the cap and clip to gether, means for automatically feeding and delivering the clips to the clip carrier, and means for automatically feeding and delivering the caps to the cap carrier, substantially as specified.

25. The combination With a clip feeder, of aV clip carrier having clip holders, of a cap feeder, and a cap carrier having cap holders, said cap holders having electro magnets to clamp the clip and cap together, substantially as specified.

26. The combination with a clip feeder, of a clip carrier having clip holders to Which the clips are delivered by said feeder, of a can feeder, a can carrier having cap holders, said cap holders having electro magnets to clamp the clip and cap together, and soldering devices adjacent to the path of the holders on one of said carriers, substantially as specified.

27. The combination with a clip carrier having rocking electro magnetic clip holders, and a solder bath into which the edges of the clips are dipped by said carrier and clip holders to apply solder thereto, substantially as specified.

28. The combination With a clip carrier having rocking clip holders, a solder bath into Which the edges of the clips are dipped to apply solder thereto, and a cap carrier having cap holders and means for transferring the clips from the clip carrier to the cap carrier, substantially as specified.

29. The combination With a clip carrier, having rocking clip holders, a solder bath into which the edges of the clips are dipped to apply solder thereto, and a cap carrier having cap holders and means for transferring the clips from the clip carrier to the cap carrier, and means for soldering the caps and clips together, substantiallyas specified.

30. In a machine for soldering vent clips on can caps, the combination with electro magnetic means for automatically assembling the can caps and clips, of means for automatically soldering the can caps and clips together, While clamped together by said electro magnetic clamping means, substantially as specified.

31. In a machine for automatically soldering vent clips on can caps, the combination with a continuously rotating clip carrier having electro magnetic clip holders, of a continuously rotating cap carrier having electro magnetic cap holders coperating to receive the clips from the clip carrier, substantially as specified.

32. In a machine for automatically soldering vent clips on can caps, the combination with a continuously rotating clip carrier having an electro magnetic clip holders, of a continuously rotating cap carrier having electro magnetic cap holders cooperating to receive the clips from the clip carrier, and

means for soldering the caps and clips together, substantially as specified.

33. ln a machine for soldering together tvvo pieces of metal, a pair of cooperating movable carriers each furnished With electro magneticholders, said carriers cooperatlng to'bring said piecesv of metal into juxtaposition as the holders pass each other, substantially as specified.

In a machine for soldering together tWo pieces of metal, a pair of cooperating movable carriers each furnished with elecpaths into juxtaposition with each other,

substantially as specified.

36. The combination with a movable carrier having an electro magnetic holder thereon, of a second carrier having an electro magnetic holder thereon, said carriers cooperating to bring said pieces of metal into juxtaposition as the holders pass each other, and means for transferring the piece of metal carried by the one carrier to the other carrier, and means for soldering the two pieces of metal together While held together by the magnetic holder of said second carrier, said soldering means being adjacent to the path of the holders on said second carrier supstantially as specied.

37. In a machine'for soldering together two pieces of metal, a pair of coperating movable carriers furnished with electro magnetic holders, and a soldering device `adjacent to the path of and `'cooperating With the holders on one of said carriers, substantially as speciied.

38. The combination with a movable carrier having an electro magnetic holder thereon, of a' second carrier Ahaving an electro magnetic holder thereon, and a soldering device adjacent to the path of and cooperating With the holder on the second carrier, substantially as specified.

39. The combination With a movable carrier'having an electro magnetic holder thereon, of a second carrier having an electro `magnetic holder thereon, and means for t-ransferrmg the piece of metal carried by the j one carrier to the other carrier, and a soldering device adjacent to the path of and coperating With the holder on the second carrier, substantially as specified.

40. The combination with a movable carrier having an electro magnetic holder thereon, of a second vcarrier having an electro magnetic holder thereon, said carriers moving said holders in adjacent paths into juxtaposition With each other, and means for deenergizing the magnetic holder on said irst mentioned carrier to transfer the article carried thereby to the holder of the second carrier as the carriersl bring the holders together, substantially as specified.

LEE C. SHARP.

Witnesses:

H. M. MUNDAY, PEARL ABRAMS. 

